Housden built the home in London’s tony Hampstead neighborhood for himself and his family between 1963 and 1965. It has four bedrooms, four bathrooms and an open-plan living area with a sunken dining area and lined with a blue mosaic tiled floor, according to the listing with London-based agents The Modern House.

“The house is in fascinatingly original condition, having been lovingly maintained by the Housden family throughout its history,” the listing said.

In 2014, the house was awarded a Grade-II listing for its architectural and historic interest and its “striking use of materials,” according to Historic England, a public body which gives landmark designation to historic properties and helps owners preserve and care for them.

The property is a “completely unique piece of architectural vision and ingenuity that syntheses a great wealth of influences and ideas,” Historic England wrote.

Pricing of an unconventional property like Housden House is never an exact science, according to Charlie Russell, senior appraisals specialist at The Modern House.

“Instead, it’s about having an acute understanding of the audience who would be most interested in the property,” Mr. Russell said.

“We know our audience very well, so it helps us to predict how they will respond. Those that appreciate something greatly, will see the value in it. In that way it is a little more like the art market,” he said.

Housden died in 2014 at age 86. The property is being sold by his daughters.